- PIERWALL, a village, in the parish of Ladykirk, island of Westray, county of Orkney; containing 95 inhabitants. It is situated on the north-east shore of the island, and has a harbour where small vessels may safely anchor, it being sheltered in nearly all directions. There was formerly accommodation for ships of greater burthen, but from the blowing of the sand the water became more shallow: the sand has also spread over some of the most beautiful and fertile ground in this part of Westray. The basin forming the harbour is remarkably fine, not above three-quarters of a mile broad at the entrance, but within wide and spacious, and of almost circular form.
A Topographical dictionary of Scotland. Samuel Lewis. 1856.